1. Pale fingertips: blood flow disorder;
2. Blue nails: circulatory disorder;
3. Yellow nails: bronchitis;
4. Swelling of knuckles: hyperuricemia and gout;
5. Small white spots appear on nails: calcium deficiency;
6. The palms are hot and sweet: hyperthyroidism;
7. The nails are milky white: the kidneys or liver are sick;
8. There are red spots on the palm: hepatitis or diabetes;
9. The nails are glassy: liver atrophy, tuberculosis;
10. Small white papules on the palm: high cholesterol;
1 1. Red line on hand: hypertension, rheumatism or heart disease;
12. nails are sunken inward: hyperthyroidism or hyperthyroidism, rheumatic fever;
13. Fingertip tattoo is now a groove: there is a risk of myocardial infarction or stroke;
14. Transverse grooves appear on nails: fatigue, tension, excessive anxiety and lack of nutrition.